Dr. Eric Yarnell, ND, RH(AHG) graduated from Bastyr University (Seattle, WA) in 1996, after which he completed a two-year residency with master herbalist and physician Silena Heron, RN, ND in Sedona, AZ. Dr. Yarnell served as chair of the department of botanical medicine at Southwest College of Naturopathic Medicine (SCNM; Tempe, AZ) where he also taught gastroenterology, urology/men’s health, and pulmonology/sleep medicine. He has served as senior and associate editor of the Journal of Naturopathic Medicine. He has been in private practice or supervising students since 1997. He is chief medical officer at Northwest Naturopathic Urology. He is a founding member and current president of the Botanical Medicine Academy (Seattle, WA), a specialty board for practitioners who use herbs.

Currently Dr. Yarnell is associate professor in the botanical medicine department at Bastyr University and adjunct faculty at SCNM. He is a co-founder and chief financial/operations office of Healing Mountain Publishing, Inc., a publisher of natural medicine textbooks for students and practitioners. He is also president of Heron Botanicals, Inc. an herbal pharmacy providing hand-crafted, whole plant extracts exclusively to health care providers.

Dr. Yarnell is author of numerous texts and articles including Natural Approach to Gastroenterology 2nd ed, the forthcoming Natural Approach to Urology and Men’s Health 2nd ed, and Natural Approach to Nephrology (all by Healing Mountain Publishing). He is co-author of Clinical Botanical Medicine 2nd ed (Mary Ann Liebert, Inc.) and the A-Z Guide to Drug-Herb-Vitamin Interactions (Prima Publishing). He is a contributing author for The Textbook of Natural Medicine 4th ed and Principles and Practice of Phytotherapy: Modern Herbal Medicine 2nd ed. He has lectured widely.


  • Why there’s no such thing as an herb for X symptom or an herb you can use instead of a drug.
  • Formulating botanical medicines vs using off the shelf products.
  • Taste is part of the medicine.
  • Energetic vs physiological effects of botanicals.
  • How to dose botanical medicines appropriately.
  • Understanding a patient’s constitution and how it influences correct formulation.
  • Misconceptions about commonly known herbs.
  • Using medicines native to your region.
  • Supporting the sustainability of botanical medicines.


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